Congenital syphilis as the cause of multiple bone fractures in a young infant case report.

Background: The differential diagnosis of multiple unexplained bone fractures in a young infant usually includes child abuse or bone disease such as osteogenesis imperfecta. Bone abnormalities can occur in 60-80% of cases with congenital syphilis and may be the sole manifestation. However, this frequent manifestation of this rare disease such as congenital syphilis is frequently disregarded.

Purpuric rash in an adolescent with fever, pancytopenia, and an hemophagocytic lymphohistiocytosis-like syndrome due to parvovirus B19.

A rare case of parvovirus B19 infection associated with fever, hemorrhagic rash, and a clinical course resembling an incomplete HLH syndrome is presented. Parvovirus B19 should be included in the evaluation of febrile purpura and HLH-like syndrome.